Explosive-engine.



No. 890,532. PATENTED TUNE 9i X908. A. P. SCHMUGEBR.

EXPLGSIVE ENGINE.

APPLICATION FILED Jim1. 14. 1905,A

4 SHEETS-SHEET l`l No. 890,532 PATNNTED JUNE 9, 1908.

A. P. SCHMUGKBN. NXPLUSIVB ENGINE.

AP'PLIQATION N'LND JAN. 14. 1905.

i. 4 SHEETS-SHEET 2.

E, WMM/N PATENTED JUNE 9, 1908.

A. P. SGHMUGKBR.

EXPLSIVE ENGINE.

APPLICATION FILED JAN. 14. 1905.

4 SHEETS-SHEET 3.

wife/.men

No. 890,532. PATENTED JUNE 9, 1908 A'. P, SCHMUCKER. EXPLOSIVE ENGINE.

APPLlGATION FILED .7AN.14.1905.

2 SHEETS-SHEET 1.

' the crank chamber and when any pistonV is at e rafrnn on ALFRED PfSGiHMUUKER, '0F DENVER, COLORADO;

Frfxrnosrvn'nnernar No. senese.' y speciscatioa or Lettera Patent. Patented am@ e, igioe;

Application led. January l, m95. eriai No. 241,119.

To all whom it 'may concern:

Be it known that I, ALFRED P. SonMUonnR, a citizen oi the United States, residing in fthe city and county of Denver and State of Colorado,l have invented certain new and' useful Improvements in Explosive-Engines; and ido declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reierence marked thereon, which forni a part* of this specification. i

My invention relates to explosive engines and consists of a multiple cylinder two cycle construction, each cylinder having an aiiXil-f iary chamber cr'nnniunicating therewith, in which the explosive mixture is compressed. The gasor explosive fluid, is introduced to its out-ward limit of movement, the said fiuid escapes from the crank chamber into the cyll inder in the rear of. the piston, and also' enters the auxiliary chamber lthrough a port at the inner extremity of the cylinder. During the return stroke of the piston, the explosive fluid is compressed in the inner extremity 0i' the cylinder and in' the auxiliary chamber, and when the piston reaches its iuwaril limit of movement,'a port leading from the auxil# iary chamber is uncovered whereby the compressed fluid is allowed to enter the cylinder forward or outside ci the piston. Then duringl the outward movement of the piston the last namedp'ort is closed and the explosive mixture compressed in the outer extremity oi the cylinder where the explosion takes place through the instrumentality of suitable sparking mechanism. in the construction herein shown and described, it is intended that the cylinder and crank chamber with. which they are connected shall rotate around' a stationary crank shaft, though it must he understood that the' cylinders may be stationary whereby the crank shaft is caused to rotate, if desired. A Having briefly outlined my improved construction as well as the function it is intended to perform, I will proceed to describe the same in detail reference being made to the accom anying drawingin which is i llustrsted in this drawing, Figure l is a vertieai een tion taken through a tour cylinder engine ci* m improved construction. taken approximately on the line i-i of iiien Fig. is an eniarged section taken throne the engine right anglesto Fie. 1. he sec con iin@ @i rig. 2 is., imitated ,by in@ fis-2 Fie 1. Fig. 3 is inner! end vienci a cyilarger scale-than. in Fig'. l. Fig. 'i is a sesv tion taken on the line @f6 Figs. 3 en fi.' Fie. 5 is a section tekenen the line Fig. 4. engineas it would appear from a point at tire left of Fig. 2 looking at said'figfure toward the right, the brushes, however, being removed to better illustrate theconteet pistes engiged by them. Fig. 7 is a 'fragmentary sectional View similar to the leit hand part of Enig. 5:, s

source of eiectricityyand an induction,

Inder and an auxiliary chambershown; onl a- Tbisseotion is Fig. 6 is a fragmentary dotnii view of the and the cirouitwires, however, beinginhalte?` y The same reference characters indicate the same parts in all tlgeviews. y Let the numerati 5 designate a snitaoie frame' or support, in which'is mounted a 6 having a crank 7 located in a chene ber 8 in which are locatedtwo slotted yokes 9 and 10 occupying positions at. right angles to each other and in different planes. Eire crank pin 81 of 'the crank shaft, renews through the slots ofthe yokes-, the said slots occupyin positionsatfrigh't an ies to eschother ani being designated bfytA e reference an auxiliary chamber 14 the said chamber seing formed integral with the eylinrier'as shown in the drawing. l

Each cylinder is provided 'with a passage 15 re isterinoF withv aV .port 16 in the crank cham er. This tissage-15l leads outwardly from the crank c amber, its 'outer extremity communicating with the cylinderat a point immediately in the rear of the piston 4- when the latter is at its outward limit oiino've'- an em odiment thereof.

men-t, whereby thegae'or other explosive `posite extremity of the crank shaft is proiiuid is allowed to enter-the'cylinder in .the

rear of the piston when the llatter is in the positionstated., As soon, howw'eyer, asthe piston begins its' return or inwrd'movement, the passage 15 is cut' oi from communication with the cylinder and this conditioncontinues until the' iston has again reached its outward limit o movement. The `auxiliary chamber 14 communicates with the cylinder by two ports 'designated ,17 and 18, respectively. The port 17 is the innermostf ort being located adjacent the crank cham er,

the piston is at its inward limit of movement,

whereby the compressed explosive mixture hgiallowed'to escape from the auxiliary chamber into the outer extremity of the cylinder, in front of the piston whereby it is Vcompressed as the latter moves outwardly and' closes the port 18,'the compression continuing until the cylinder reaches its outward limit of movement and theexplosion takes lace through the instrumentality oi suitable evices.

- AThe two pistons of each pair of oppositel disposed cylinders, are connected with tie opposite sides of a yoke 9 by piston stems 19 lch are rigidly connected both with the pistons and t e yoke. -The explosive fluid is introduced into the crank chamber through a lon itudinal passage A formed in the crank sha t 6. The op- -'vided with a longitudinal passage B through whichoil or other lubricating material is introduced to the bearing arts from a duct E formed in 4the crank c iamber casing and communicating with a chamber C in which is haust-port 2O located immediately beyond located a spring-actuated piston-D whereby the oil is automatically forced through the duct E,

`When the-machine is in operation the c'rank chamber and. the cylinders rotate on thegcrank shaft, the structure being proi vided with suitable ball bearings to diminish friction.l I

Each cylinder is provided with an exf the piston when the latter is at its inward limit of move ent'. An exhaust passage 2l registers at one extremity with the port 20, its opposite extremity communicating with -an exhaust chamber 22 formed in the crank chamber casing but having no communication with the crank chamber. All four cylinders are connected with the same exhaust `(see Figs. 6 and 7).

chamber, and the exhaust 'escapes from the said cliamber through an exhaust outlet or conduit 2 3.

The outer extremity of each -cylinder'is provided with a sparking glug 24 which may e 'suitably connected wit an electrical cir'-- vcuit for producing a spark in the outer extremity of each cylinder at or approximately at the"- moment of greatest compressionor when the piston has reached its outward limit olf-movement. The engine is equipped lwith suitable Ameans for automatically producing aesp'ark in the extremity oifeach cylinder at the proper instant but this mechanism. will not be described in detail. By

referring, however, to Fig. 2 it will b e observed that two conductors 25 and 26 are` res ectively connected with metal contacts or rushes 27 and 28whercby as the cylinders and crankchainber rotate, the circuits are closed through the instrumentality of conductors 29and30.

plained more in detail, special reference being made to Figs. 6 and 7. Starting at the batteries j, the low tension current is conductedgby the wire g to' the inner or low tension coil of vthe indinetioncoil D, then through the low'tensioneoil into the wire 26 Which'conducts the low tension current to ,the brush 28.' The brush 28 isproperly insulated to keep the current' from being conductedvto the arm or brush holder 4i. As the engine rotates, the brush 28 comes in contact with the contact plate which is set into a pieceof insulating material 7c in order to insulate the platesj andl .n from each other. 'lhe plate being in contact with the engine frame, the current passing through' this plate will be grounded as a matter .of course. In order to make this fact more clear, the plate is shown connected with the engine frame by `a Awire 30 at a peint Z' By virtue of this construction and arrangement, at intervals controlled by the rotation of the engine, the current goes through the engine. The wire e The sparking mechanism will now be ex-' sol roo-

which is grounded to the'engine at a point d,

then conducts the current back to batteries f making a complete low tension circuit.

The high tension current Starts in the induction coil D caused by the induction of the current from the inner coil or the low tension coil'to the outer coil or the high tension coil. "Ihe wire ibeingconnected to the high tension coil conducts the high tension current to brush 27.' The brush 27 is iroperl y insulated to 'keep the current from icing conducted to anything other than the high tension contact plates n. rl`he contact plates 'abeing set in the insulating disk or plate k,'rotate with the engine, causinga contact between the brush 27 and one of the contact plates n. The wire 2-9 conducts the cylinder communicating with the ."crank c amber by a suitable passage when the piston is at its outer limit of movement, the said passage being closed at its cylinder end as the piston begins its inward stroke, each cylinder being also'provided with an exhaust passage-open when the piston is at 'its inward inlet therefor, a crank shaft passing through' the chamber and dis osed at right angles tov mit of movement, but closed by the piston when the llatter begins its outward stroke: x

3. In an explosive enginef'the combina-l' tion of a common crank chamber, a charge said chamber, two slotted yokes located in being closed until the piston has completed- 'der at al or approximately completed its4 inward stroke, the crank chamber having a assa e communicating with the cylinder when tie piston is at its outward limit of movement, the Isaid passage being eut oft from the cylinother times. 4. In an explosive engine, the combination of a common crank chamber, a chargeinlet therefor, a number ofcylinders mounted thereon, pistons in the cylinders, each cylinder having an auxiliary chamber communicating with the cylinder by imier and outer ports, the outer ports being controlled b the pistons, the last named ports being(- osed except when the pistons are at or approximately at their inner limit of movement, the inner port being in communication with the cylinder to allow the explosive mixture to be compressed therein-during theinward move-l ment of the piston, each cylinder having a Xi passa 1re communicating with the crank elianrei' W en the piston is at its outward limit of movement, and an exhaust passage. open when the piston is at or approximately at its inward limit of movement, the arrangement being suoli that an explosion occurs in each cylinder during each revolution,

.2.5.1. In anv explosive engine, the combina- 'tioiiof a crank chamber, a charge inlet there- 'forg'ac linder connected therewith and havi y 1 3 '.ingan4 auxiliary chamber provided with two ce! fport being at the inner extremity of the cylports communicating with the cylindcr,lone

A4:inder and the other in position to be .uncovered when the piston is at or approximately at its inward limit of movement, 4for the es-v cape of the ex losivemixture'into'theouter extremity of t e cylinder, the said mixture being compressed in the-auxiliary chamber during the inward movement of tbziclpiatoii, the crank chamber bein in ,comn'i with the cylinder when t ie piston is at or approximately at its outwar 6. An explosive engine having a c rank chamber, a charge inlet therefor, a c ylmder cation limit of move` Vment, the cylinder, however, bein at'all other times cut ofil from the crank c amber;

provided with an auxiliary chamber in coin- -v inunication with the cylinder to allow the exlosive mixture to be compressedin theauxiliary chamber at each inward stroke of the piston, t hc cylinder being incommunication with the crank chamber when the piston is at or approximately' at its outward limit of movement, the cylinder, however, being cut off from the crank chamber at all other times. I.'

7. An explosive engine rovided with a common crank chamber, a c iarge inlet therefor, anumberof cylinders each being provided with an auxiliary chamber in connection with the cylinder to allow the explosive mixture to be compressed in the auxiliary chamber during the inward movement of the piston, the auxiliary chamber being open to allow-the compressed fluid to enter the cylinder at the outer extremity of the iston when the latter is at its inward limit o' movement. 8. An explosive engine provided with 'a common crank chamber, a c iarge inlet therefor, and a number of cylinders dis ose'd about the crank chamber, each cylin er being in communication with. the .crank chamber to receive a supply of explosive' mixture when its piston is at its outward limit of movement,

, but eut oil therefrom at all other times, eac h cylinder having an auxiliary chamber, the latter havinginner and outer portscommunieating with the cylindenthe inner port being o en to allowthe explosive mixture to enter t ie auxiliary chamber from the cylinder 'andv be com ircss'ed thereinf during'j` the inward i,

travelo the piston; and theouter port being open to allow thc compressed inixture'to enter the c lindeigat the. outer extremity of the piston wlicn the'lattcr is at itsv inward limit of movementl the said outer port beingat all other tiinesciit 'olf from communication with the cylinder. l

9. A two cycle explosive engine composed of a roniinon crank chamber, a charge inlet' therefor, cylinders disposed about tlic chang: ber, the chamber and cylinders being iiionn ed to rotate, the explosions occurring in the several cylinders successively, there being an explosion in cai-li cylinder during eve'ryrevorio lution oi' the engine, the cylinders being re;

spectivcly provided with auxiliary eliniiibeie` in which the explosive mixture is coilipr'esseiifI 'respective cylinders at the outer extremities aslthe pistons move inwardly, the auxiliary and means for maintaining a supply of eri-'l0 chambers being in communication with the plosive mixture in the crank chamber.

In testimony whereof I afix my signature in presence of two Wltnesses.

ALFRED P. SCHMUCKER.

` Witnesses:

DENA NELSON, A. J. OBRIEN.

of the istons when tlie latter are at their inward imit of movement, but cut oT therefrom at all'other times, each cylinder being in communication with the crank chamber at the inner extremity of its piston when the latter is at its outward limit of movement, 

